﻿/* 
 * Copyright (c) 2011 Jeff Zhang
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of 
 * this software and associated documentation files (the "Software"), 
 * to deal in the Software without restriction, including without limitation the rights to use, 
 * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, 
 * and to permit persons to whom the Software is furnished to do so, 
 * subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included 
 * in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

using System;
using System.Collections.Generic;
using System.Text;

namespace Json {
    public sealed class JsonNull : JsonObject<object> {
        public static JsonNull Null = new JsonNull();

        public JsonNull() : base(null) { }

        public override int Length { get { throw new IllegalOperationException(); } }

        public override IJsonObject this[string key] {
            get { throw new IllegalOperationException(); }
            set { throw new IllegalOperationException(); }
        }

        public override IJsonObject this[int index] {
            get { throw new IllegalOperationException(); }
            set { throw new IllegalOperationException(); }
        }

        public override string ToJson() {
            return "null";
        }

        public override byte[] ToBytes() {
            return new byte[] { (byte)this.Type };
        }
    }
}
